Coffee-urn.



n. A NENNINGER.

COFFEE URN.

APPLIUATION FILED OUT. 7, 1907.

Patented Mar. 2, 1909.

h iiiikmviiiii ATTORNEYS vessel for holding the extract.

, tical section.

tight boiler Ct,

, connected at the lower e tom of vessel OSCAR A. NENNINGER, OF EL PASO, TEXAS.

COFFEE UIRIN.

Specification of Letters Patent.

Patented March 2, EQGO.

. Application filed October 7, 1907. Serial No. 396,20Q.

T all whom it may concern:

Be it known that I, ()scAR A. NENNINGER,

a citizen of the United States, residing at El Paso, in the county of El Pasoand State of Texas, have. invented a new and useful tracted in a short space of time, by causing boiling water to percolate through the mass of ground berries supported above an inner Improved means are also provided for passing the liquid repeatedly through the mass, for the purpose of increasing the strength of the extract The flow of the liquid in either case is produced by steam generated in the boiler or outer vessel, thepressure of which is used to circulate the liquid, and which can be controlled by means of a stop cock.

Various other improvements and advantages will be apparent from'the' following description.

Inthe accompanying drawings wherein I the invention is illustrated, Figure l is a side elevation of the urn. Fig. 2 is a ver- Fig. 3 1s a detail in plan of the cover of the coiiee bag. Fig. 4 is a 5 detail in section of a ring which rests on said cover.

Referring specifically to the drawings, a is an air-tight boiler madeof copper (or-,any

metal suited to hold hot water) having at a the upper part a cock k with funnel marked water. On the top of airis soldered a ring 0, and covered with lid (1 made of copper or glass. On the side. of boiler is a glass tube e, rill to the boiler, and

at the upper end to the top 0, inside of which it is connected to a nipple with elbow marked c running almost to center of ring 0 and turned upwards.

is, for filling in e f, connected at top and bottom the same as e, on opposite side, and having a nipple f with elbow turned down, extending almost to the center of ring c. Both nip ice are made to screw in and to be taken 0 easily.

The inner vessel or extract holder is part of boiler 11, and is lined with aluminum or porcelain or any material not afiected by coffee. A. pipe j" is comiectedto the botb, and is fastened to inner side of boiler a,and passes through to an injector about half way up.

cone shaped bag It and covered with cover g.

On the opppsite side coffee-slowly and is stored. in holder casingf which is made of an ordinary fitting tee, to whichis screwed in a cock f for letting coffee out of vesselb. In the bottom of tee f, is a small injector nozzle or pipe tapered at the top running up into the. tee and marked j'F", and screwed in so that top is a little above-the center of the tee, and directly'underthe tube f. To this nozzle is screwed a cock f and to the bottom a tee and pet cock f To this. is connected a small pipe f 8 extending to the top of the boiler a and screwed or soldered to the side 'thereof. The glass tubes e and f on the side of the boiler a are connected with the usual unions at top and bottom, indicated at e on one side and f 9 on the other.

On the top of the extract holder 1). are placed two rings 9 and h. One of the rings has muslin sewed across so as to form a flat cover 9 and the other ring also has muslin sewed across so as to form a cone-shaped bag It so as to hold/ ground coffee. On the top of the fiat cover 9 is placed a ring 1' which 1s v ressed down at point 't' so that it stretches the cover 9 until it joins with h and forms a tight joint.

Both nipples e and f hold down the ring i, cover 9 and cone's'haped bag h, which however can be easily taken out by unscrewing the two nipples.

, In using the urn, the boiler is filledwi-th Water through cock is up to dotted line or Oofiee is placed into the The ring 'll'is pressed down so that the fabric of the cover 9 and cone-shaped bag h form s. tight joint at i.

to hold'ring t andcover g in place, the nipple e being screwed so as to have its elbow upwards and nipple f with its elbow down-' wards. Theboiler is heated by gas or any other means. he soon as the water 13 at the 'lhe nipples are screwed in boiling point all the cocks k,'%,f and f, are

closed,'and as soon as there is enough steam pressure the water will be forced up glass tube 6 and will overflow at topof elbow c and fill ring't. 'lhe flow can be'regulated with stop cock k, by opening or shutting the same according to hot water needed. As

' the boiling hot water percolates through the coffee in the cone shaped bag it extrzgcts itiie 1e hot water can .be regulated to any qcuantity desired by opening or shutting cock which varies the steampressure by allowing more or less steam to escape.

When enough hot water has been passed I through the {girl-sound coffee, which can be seen.-

'- at the nozzle f will t en forcethe cofiee u when filling boiler with water.

I the tube f to nipple f and into ring 11 and it will percolate through the ound coflee. This may be continued until it as the proper strength. Cock f is merely to let out any condensed water in tube f or to expel air for hot wateror to empty boiler. V Thetubes e andf answer two purposes, to see contents in urn, both water and coifee, and for forcing both cofiee and water to top of urn. This water must boil before it will rise and per'colate through the ground cofiee. Forcing the hot cofiee extract. through the ground beans over and over until it gets the roper strength is a decided advantage. 0th hot water and cofiee extract can be run in over the ground beans and regulated by merely opening or shutting cocks 7c and 7.- There is no danger of explosion and both tubes are always open on the to -The nipples e and f can be readily repliiced or removed by removing the cover (1, and when the nipples are taken ofi, the ring i and the bag can be removed.

claim 1. Thecombinationof a boiler, a holder therein torthe extract, a bag above said Cock m is sai pipes respectively I I I osc n A. NENNINGER. I

into the same, means to control steam pres? .sure within-the boiler to regulate the flow of water therefrom to the bag, and means actuated by steam in the boiler to cause flow of-ezitract from theholder'to said bag.

2. The combination of a boiler and holder within the same, a bag above the holder,

pipes extending respectively fromthe boiler and the holder and having removable nipples over the bag and adapted to discharge theremto, and'a-casing above the-bag and through which said pipes extend, said casing inclosing the bag and-the'nipples, the latter being removable to allow former,

the. removal of I the;-

3. The combination of aboiler, a holder therein, a casing. above the boiler, pipes extending respectively from the bottom of the boiler and holder upwardly outside the boiler and through the casing and having removable. nipples therein, a bag at the top of the holder, a porous cover for said bag, a ring fitting upon said cover under the nip les, and means to reduce and control flow 0 liquid through Witnesses:

A. H. PARKER, R. J. OWEN. 

